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From patchwork Sat May 8 16:58:11 2010
Content-Type: text/plain; charset="utf-8"
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Subject: [v2] linux-user: fix running programs with iwmmxt
Date: Sat, 08 May 2010 06:58:11 -0000
From: Lars Munch <lars@segv.dk>
X-Patchwork-Id: 51970
Message-Id: <1273337891-20342-1-git-send-email-lars@segv.dk>
To: qemu-devel@nongnu.org
Cc: Lars Munch <lars@segv.dk>
CP0 and/or CP1 needs to be accessible when using linux-user for emulating a
pxa270 cpu with code using iwmmxt instructions. This patch inits the cpu to
have CP0 and/or CP1 accessible if in linux-user mode.
Signed-off-by: Lars Munch <lars@segv.dk>
---
target-arm/helper.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
Index: qemu-0.12.4/target-arm/helper.c
===================================================================
--- qemu-0.12.4.orig/target-arm/helper.c 2010-05-22 22:48:27.045182598 -0700
+++ qemu-0.12.4/target-arm/helper.c 2010-05-23 08:31:29.095165136 -0700
@@ -165,6 +165,9 @@ static void cpu_reset_model_id(CPUARMSta
/* JTAG_ID is ((id << 28) | 0x09265013) */
env->cp15.c0_cachetype = 0xd172172;
env->cp15.c1_sys = 0x00000078;
+#if defined (CONFIG_USER_ONLY)
+ env->cp15.c15_cpar = 0x00000001;
+#endif
break;
case ARM_CPUID_PXA270_A0:
case ARM_CPUID_PXA270_A1:
@@ -178,6 +181,9 @@ static void cpu_reset_model_id(CPUARMSta
env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
env->cp15.c0_cachetype = 0xd172172;
env->cp15.c1_sys = 0x00000078;
+#if defined (CONFIG_USER_ONLY)
+ env->cp15.c15_cpar = 0x00000003;
+#endif
break;
default:
cpu_abort(env, "Bad CPU ID: %x\n", id);
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